BBC News - NSA and GCHQ agents 'leak Tor bugs', alleges developer: "...British and American intelligence agents attempting to hack the "dark web" are being deliberately undermined by colleagues, it has been alleged. Spies from both countries have been working on finding flaws in Tor, a popular way of anonymously accessing "hidden" sites. But the team behind Tor says other spies are tipping them off, allowing them to quickly fix any vulnerabilities...By fixing these flaws, the project can protect users' anonymity..."